A space-saving high-efficiency cyclone separator and cleaning equipment

Abstract

A space-saving high-efficiency cyclone separator comprises: a cup body and a separation device arranged in the cup body, the cup body comprises a longitudinal axis, the separation device comprises a primary separator and a secondary separator arranged in the primary separator, the primary separator comprises a filter screen and an airflow guiding channel arranged around the filter screen, the secondary separator comprises an upper cone and a lower cone stacked up and down, the lower cone and the upper cone respectively comprise a plurality of first air inlet parts and a plurality of second air inlet parts for air intake after separation from the filter screen, the airflow guiding channel is arranged at the upper end of the filter screen and partially shields the second air inlet parts, the dust gas enters the filter screen after being filtered by the primary cyclone, and the airflow is simultaneously inhaled by the first and second air inlet parts staggered up and down to perform secondary cyclone separation, as many air inlets as possible can be arranged in a limited circumferential space to increase the air intake volume of the secondary separator and improve the separation efficiency of the cyclone separator.

Description

[Technical field]

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a cyclone filter and a cleaning device. [Background technology]

[0002] The existing handheld vacuum cleaner usually includes a main body, a motor and a power supply system arranged in the main body for generating negative pressure. The power supply system usually adopts two types: AC and DC. A cyclone separator is arranged on the main body for separating dust sucked in by the motor of the handheld vacuum cleaner to generate negative pressure, storing the dust in the cyclone separator, and discharging the separated airflow. The cyclone separator includes: a cup body for storing dust and a separation device arranged in the cup body for separating dust and air. The separation efficiency of the cyclone separator directly determines the working efficiency of the entire vacuum cleaner, and also determines the cleanliness of the airflow discharged by the handheld vacuum cleaner to a certain extent. At the same time, with the improvement of people's living standards, the housing area is getting larger and larger, and the requirements for a single cleaning area and the ash storage capacity of the cyclone separator are getting higher and higher. In this case, in order to improve the cleaning efficiency, the volume of the separation device and the cup body is continuously increased to increase the airflow passing through and the ash storage volume of the main body. With such a design, the volume of the cyclone separator is getting larger and larger, and the weight is getting heavier, which runs counter to the trend of small and lightweight cleaning appliances, affects the ratio of the cyclone separator to the whole machine, and does not conform to the public's aesthetics.

[0003] The closest prior art is the Chinese invention patent CN 103169420B, in which the applicant is Dyson, which discloses a cyclone filter for a handheld vacuum cleaner. Figure 4-6 As shown, the cyclone separator includes a cup body and a separation device arranged in the cup body. The separation device occupies most of the space in the cup body. At the same time, in order to increase the air intake and improve the dust and gas separation efficiency, the separation devices must be set as large as possible. In this way, more air flow cones can be set in the circumferential direction to enhance the separation efficiency and increase the air intake. However, this will cause the overall structure of the cyclone separator to be too large and the weight to increase, thereby increasing the weight of the whole machine and the volume of the whole machine, which is not in line with the market trend of lightweight cleaning appliances.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. [Summary of the invention]

[0005] The object of the present invention is to provide a high-efficiency cyclone separator and cleaning equipment which can save space.

[0006] The objective of the present invention is achieved through the following technical solutions: a space-saving high-efficiency cyclone separator, comprising: a cup body and a separation device arranged in the cup body, the cup body comprising a longitudinal axis, the separation device comprising a primary separator and a secondary separator arranged in the primary separator, the primary separator comprising a filter screen and an airflow guide channel arranged around the filter screen, the secondary separator comprising an upper cone and a lower cone stacked up and down, the lower cone and the upper cone respectively comprising a plurality of first air inlet parts and a plurality of second air inlet parts for air intake after separation from the filter screen, the airflow guide channel being arranged at the upper end of the filter screen and shielding a portion of the second air inlet part.

[0007] Preferably, the first air inlet portion of the lower cone and the second air inlet portion of the upper cone are alternately arranged in a circumferential direction and are staggered in an up-and-down manner.

[0008] Preferably, the upper cone includes a second air passing portion which is spaced apart from the second air inlet portion in the circumferential direction.

[0009] Preferably, the lower cone includes a first wind passing portion which is spaced apart from the first air inlet portion in the circumferential direction.

[0010] Preferably, the second air inlet portion is arranged above the first air passing portion along the axis of the cup body, and the second air passing portion is arranged above the first air inlet portion along the axis of the cup body.

[0011] Preferably, the angle formed by the end of the airflow guiding channel and the inlet point of the first air inlet portion of the lower cone to the axis of the cup body is no greater than 30 degrees.

[0012] Preferably, the angle formed by the end of the airflow guiding channel and the inlet point of the second air inlet portion of the upper cone to the cup body axis X is not less than 45 degrees.

[0013] Preferably, the angle formed between the inlet end and the terminal end of the airflow guiding channel and the axis of the cup body is not greater than 120 degrees.

[0014] Preferably, the cup body is provided with an airflow inlet for airflow to flow in, and the inlet end of the flow guiding channel is also provided with a baffle capable of blocking the airflow inlet.

[0015] Compared with the prior art, the present invention has the following beneficial effects: dust gas enters the filter screen after being filtered by the first-stage cyclone, and the air flow is simultaneously sucked in by the first and second air inlet parts which are staggered up and down to perform secondary cyclone separation. With such an arrangement, as many air inlets as possible can be arranged in the limited circumferential space, thereby increasing the air intake volume of the secondary separator, improving the separation efficiency of the cyclone separator, and reducing the volume of the separation device. This can also reduce the overall size of the cyclone separator, which is in line with the market trend of lightweight and miniaturization. Furthermore, without reducing the size of the cup body, reducing the volume of the separation device can increase the ash storage capacity of the cup body, extend the service life of the cyclone separator, and eliminate the need for frequent ash emptying.

Brief Description of the Drawings

[0016] Figure 1 It is a stereoscopic diagram of a cyclone separator of the present invention.

[0017] Figure 2 It is a partial exploded view of the present invention.

[0018] Figure 3 It is a stereoscopic diagram of the separation device of the present invention.

[0019] Figure 4 It is a partial exploded view of the separation device of the present invention.

[0020] Figure 5 It is a stereoscopic diagram of the secondary separator of the present invention.

[0021] Figure 6 yes Figure 5 Another perspective stereogram.

[0022] Figure 7 It is a top view of the upper cone of the present invention.

[0023] Figure 8 It is a top view of the lower cone of the present invention.

[0024] Fig. 9 It is an assembly diagram of the upper and lower cones of the present invention.

[0025] Fig.10 yes Figure 5 Another perspective of the partially exploded view.

[0026] Fig.11 yes Figure 5 Another perspective exploded view.

[0027] Fig.12 yes Fig.11 Another perspective of .

[0028] Fig.13 yes Figure 5 sectional view of .

[0029] Fig.14 yes Fig. 9 sectional view of .

[0030] Fig.15 yes Fig. 9 Partial cross-sectional view.

[0031] Fig.16 This is the first application mode of the cyclone separator of the present invention.

[0032] Fig.17 This is the second application mode of the cyclone separator of the present invention.

[0033] Fig.18 This is the third application mode of the cyclone separator of the present invention.

[0034] Fig.19 This is the fourth application mode of the cyclone separator of the present invention. [Specific implementation method]

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] See also Figures 1 to 15As shown, the present invention provides a space-saving, high-efficiency cyclone separator and cleaning equipment. Specifically, the cleaning equipment can be a handheld vacuum cleaner, a horizontal vacuum cleaner or a commercial vacuum cleaner, and is further applied to a sweeping robot.

[0040] A cyclone separator 100 includes a cup body 1 and a separation device 2 arranged in the cup body 1. The cup body 1 is roughly cylindrical and includes a surrounding side wall 11 and a bottom wall 12 arranged at the bottom end of the side wall 11 and capable of opening or sealing the bottom of the side wall 11. The top of the cup body 1 is open upward, and an axis X extending forward and backward through the bottom wall 12 is arranged at the center of the cup body 1. The cyclone separator 100 is arranged on a cleaning device. According to the layout of the cleaning device, the cup body 1 can be arranged horizontally, vertically, or tilted, which will not be repeated here.

[0041] Since the cyclone separator 100 will be at least partially abutted against or connected to the surface of the cleaning device for fixation, usually, the cup body 1 of the cyclone separator 100 will be abutted against or connected to the side wall 11 of the cleaning device and will be arranged to be flat, so that the cyclone separator 100 and the cleaning device can be fixed more firmly. An air flow inlet 101 for sucking dust into the cyclone separator 100 is provided on the surface of the side wall 11 of the cup body 1 abutting against the cleaning device. In other embodiments, the air flow inlet may also be arranged at other positions of the cup body 1.

[0042] A separation device 2 is installed in the cup body 1, and the separation device 2 includes: a primary separator 21 and a secondary separator 22 arranged inside the primary separator 21, the primary separator 21 includes an annular main body 211 and a secondary ash storage part 212 further contracted and extended downward from the lower end of the main body 211, wherein a primary cyclone space 210 for cyclone surrounding is formed between the primary separator 21 and the cup body 1, and dust is sucked into the primary cyclone space 210 from the air flow inlet 101 of the cup body 1, and the dust rotates around the primary separator 21 in the primary cyclone space 210, and a hollow filter screen 213 is arranged around the main body 211 of the primary separator 21, and large particles of dust in the dust rotate around the primary separator 21 and are thrown into the lower end of the cup body 1 due to the action of centrifugal force, and other dust enters the interior of the main body 211 of the primary separator 21 from the filter screen 213.

[0043] A skirt 214 extending downward and outward is provided at the lower end of the filter screen 213 of the primary separator 21. The skirt 214 has a circumferential diameter greater than the circumferential diameter of the filter screen 213. The skirt 214 is used to press dust. When the dust rotates and separates in the primary cyclone space 210, large particles of dust are thrown to the bottom of the main body 211. The skirt 214 can prevent large particles of dust from falling into the bottom of the cup body 1 and rising again.

[0044] The first-stage separator 21 is provided with an annular airflow guiding channel 216 along the filter screen 213, and the airflow guiding channel 216 is used to introduce dust gas into the cup body 1 in a spiral state. The inlet end of the airflow guiding channel 216 is also provided with a baffle 217 that can block the airflow inlet 101. The baffle 217 is used to block the airflow inlet 101 when not in use, and rotates toward the inside of the cup body in the started state to open the airflow inlet 101.

[0045] The secondary ash storage part 212 narrows and extends inward from the lower end of the filter screen 213 and then extends vertically downward to form a structure combining an inverted cone and a cylinder. When the bottom wall 12 is closed, the cylindrical bottom of the secondary ash storage part 212 extends downward and rests on the bottom wall 12 of the cup body 1, and a sealing ring 215 is arranged between the secondary ash storage part 212 and the bottom wall 12.

[0046] The secondary separator 22 is arranged in the main body 211 of the primary separator 21 and is surrounded by the main body 211 and the filter screen 213. The secondary separator 22 includes: an upper cone 221, a lower cone 222 and a cone cover 223 stacked in the same direction along the axis of the cup body 1, wherein seals 224, 225 that seal each other are provided between the upper cone 221 and the lower cone 222 and between the upper cone 221 and the cone cover 223.

[0047] The lower cone 222 includes: a plurality of lower cyclone cones 2221 arranged in a surrounding manner and a plurality of lower wind-passing cones 2222 arranged in a surrounding manner at intervals from the lower cyclone cones 2221, wherein each lower cyclone cone 2221 and the lower wind-passing cone 2222 are arranged independently of each other, the lower cyclone cone 2221 includes a first air inlet portion 2223 arranged in an annular manner and a first cone portion 2224 contracted and extended downward from the first air inlet portion 2223, the lower wind-passing cone 2222 includes a first wind-passing portion 2225 arranged in an annular manner and a second cone portion 2226 contracted and extended downward from the first wind-passing portion 2225, Among them, the annular diameter of the first air inlet portion 2223 is larger than the annular diameter of the first air pass-through portion 2225. The first air inlet portion 2223 extends tangentially outward to form a first air inlet channel 2227. The first air inlet channel 2227 includes a pair of side walls extending circumferentially from the first air inlet portion 2223 and a bottom wall connecting the two side walls. The lower cyclone cone 2221 and the lower air pass-through cone 2222 are both configured to be an upwardly open structure. The two side walls of the first air inlet channel 2227 are arranged parallel to each other, and the side walls of the first air inlet channel 2227 extend tangentially to be connected to the outer wall of the first air pass-through portion 2225.

[0048] When the airflow enters the first air inlet channel 2227, it enters the first air inlet portion 2223 in a counterclockwise direction from the first air inlet channel 2227. An annular stopper 227 is provided below the lower cone 222 to cover the first cone 2224 of the lower cyclone cone 2221 and the second cone 2226 of the lower wind cone 2222. When the lower cone 222 is installed in the main body 211 of the primary separator 21, the stopper 227 is pressed downward against the upper part of the secondary ash storage portion 212 to separate the space of the secondary ash storage portion 212 from the main body 211 of the primary separator 21. At the same time, the first cone 2224 of the lower cyclone cone 2221 and the second cone 2226 of the lower wind cone 2222 are connected to the secondary ash storage portion 212.

[0049] In an embodiment of the present invention, three lower wind cyclone cones 2221 and three lower wind-passing cones 2222 are provided in the lower cone 222. The angle formed by the line connecting the center of the lower cyclone cone 2221 and the center of the lower cone 222 to divide the circumference is 120 degrees, and the angle formed by the line connecting the center of the lower wind-passing cone 2222 and the center of the lower cone 222 to divide the circumference is 120 degrees.

[0050] The upper cone 221 includes: a plurality of upper cyclone cones 2211 arranged in a surrounding manner and a plurality of upper wind-passing cones 2212 arranged at intervals from the upper cyclone cones 2211, wherein each upper cyclone cone 2211 and the upper wind-passing cone 2212 are arranged independently of each other, the upper cyclone cone 2211 includes a second air inlet portion 2213 arranged in an annular manner and a third cone portion 2214 contracted and extended downward from the second air inlet portion 2213, the upper wind-passing cone 2212 includes a second wind-passing portion 2215 arranged in an annular manner and a connecting portion 2216 extending downward from the second wind-passing portion 2215, wherein: The circumferential diameter of the second air inlet 2213 is larger than that of the second air passing portion 2215. The second air inlet 2213 extends outwardly in a tangential direction to form a second air inlet channel 2217. The second air inlet channel 2217 includes a pair of side walls extending circumferentially from the second air inlet 2213 and a bottom wall connecting the two side walls. The upper cyclone cone 2211 and the upper air passing cone 2212 are both configured to be open upwards. The two side walls of the second air inlet channel 2217 are arranged parallel to each other, wherein the side walls of the second air inlet channel 2217 extend tangentially and are connected to the outer wall of the second air passing portion 2215. The connecting portion 2216 of the upper air passing cone 2212 is cylindrical, and the outer diameter of the connecting portion 2216 is smaller than the outer diameter of the second air passing portion 2215.

[0051] When the airflow enters the second air inlet channel 2217, it enters the second air inlet portion 2213 in a counterclockwise direction from the second air inlet channel 2217. A flat baffle portion 226 is provided below the lower cone 222 to fix the third cone portion 2214 of the upper cyclone cone 2211 and the connecting portion 2216 of the upper wind cone 2212 together, and extends outward around the outer periphery of the upper wind cone 2212, and the connecting portion 2216 and the third cone portion 2214 are spaced apart below the baffle portion 226.

[0052] In an embodiment of the present invention, three upper wind cyclone cones 2211 and three upper wind passing cones 2212 are provided in the upper cone 221. The angle formed by the line connecting the center of the upper cyclone cone 2211 and the center of the upper cone 221 and the circumference is 120 degrees, and the angle formed by the line connecting the center of the upper wind passing cone 2212 and the center of the upper cone 221 and the circumference is 120 degrees.

[0053] When the upper cone 221 is installed on the lower cone 222, the third cone portion 2214 extends downward into the first air passing portion 2225 and is approximately located at the center of the first air passing portion 2225, and the connecting portion 2216 extends downward into the first air inlet portion 2223 and is approximately located at the center of the first air inlet portion 2223, wherein the upper cone 221 and the lower cone 222 are mutually sealed by the baffle portion 226, so that each upper cyclone cone 2211 of the upper cone 221 and the lower cone 222 are sealed. The lower wind cones 2222 are independently sealed and connected to each other. At the same time, each upper wind cone 2212 of the upper cone 221 is independently sealed and connected to the lower cyclone cone 2221 of the lower cone 222. In order to enhance the sealing performance of the upper cone 221 and the lower cone 222, a seal 224 is used for sealing. The shape and structure of the seal 224 are roughly the same as those of the baffle portion 226. The seal 224 is provided with a plurality of through holes for the third cone portion 2214 of the upper cone 221 and the connecting portion 2216 to pass through.

[0054] The cone cover 223 covers the top of the upper cone 221, and a plurality of air outlet columns extend downward from the bottom of the cone cover 223. The air outlet columns are arranged in a circular shape, and a fixed column 2231 extending downward is provided in the middle. The air outlet columns are axially arranged around the fixed column 2231, and the interior of the air outlet column is hollow for air flow. The air outlet columns include a long air outlet column 2232 and a short air outlet column 2233. The long air outlet column 2232 extends downward beyond the short air outlet column 2233, and the long air outlet column 2232 and the short air outlet column 2233 are arranged at intervals. The top of the cone cover 223 is recessed inward to form a receiving groove 2230 for accommodating the air outlet filter HEPA 3 of the cyclone separator 100. The cone cover 223 is installed on the top of the upper cone 221, wherein the short air outlet column 2 233 extends downward into the second air inlet portion 2213 and is approximately located in the center of the second air inlet portion 2213, and the long air outlet column 2232 extends downward into the second air passage portion 2215 and presses downward against the top of the connecting portion 2216, so that the long air outlet column 2232 and the connecting portion 2216 form a sealed connection. In one embodiment of the present invention, the connecting portion 2216 shrinks downward and extends from the second air passage portion 2215 to form a step portion 2218 at the connection, and the long air outlet column 2232 presses downward against the step portion 2218, and the outer diameter of the long air outlet column 2232 is approximately the same as the inner diameter of the lower end of the second air passage portion 2215, so that the long air outlet column 2232 is surrounded by the second air passage portion 2215 at the portion pressing against the step portion 2218. In order to enhance the sealing performance between the upper cone 221 and the cone cover 223, a seal 225 is used for sealing. The shape and structure of the seal 225 are substantially the same as the profile of the cone cover 223. The seal 225 is provided with a plurality of through holes for the air outlet columns to pass through.

[0055] The short air outlet column 2233 extends downwardly through the second air inlet portion 2213 and partially extends downwardly into the third cone portion 2214 . The third cone portion 2214 extends downward through the first air passing portion 2225 and further extends downward partially into the second cone portion 2226, and the bottom surface of the third cone portion 2214 presses downward against the inner side wall of the inner side wall of the second cone portion 2226 extending upward, so as to achieve a sealed connection between the third cone portion 2214 and the second cone portion 2226, and the top end of the first air passing portion 2225 presses upward against the outer wall of the third cone portion 2214. When the upper cone 221, the lower cone 222 and the cone cover 223 are assembled into one, the fixing column 2231 of the cone cover 223 passes downward through the upper cone 221 and penetrates into the lower cone 222, connecting the upper cone 221, the lower cone 222 and the cone cover 223 in series, and the lower cone 222 and the fixing column 2231 are fixed to each other by screws, so as to achieve fixing the upper cone 221, the lower cone 222 and the cone cover 223 together.

[0056] After the upper cone 221, the lower cone 222 and the cone cover 223 are fixed to each other, the upper cyclone cone 2211 and the upper wind-passing cone 2212 of the upper cone 221 are arranged around the outer periphery of the fixed column 2231 at intervals, and the lower cyclone cone 2221 and the lower wind-passing cone 2222 of the lower cone 222 are also arranged around the outer periphery of the fixed column 2231 at intervals.

[0057] When the secondary separator 22 is installed on the primary separator 21, the upper cone 221 and the lower cone 222 of the secondary separator 22 are both received downward to the inner side of the filter screen 213 of the primary separator 21, and a space for airflow rotation is left between the filter screen 213 of the primary separator 21, and the cone cover 223 of the secondary separator 22 is covered on the upper end of the filter screen 213 of the primary separator 21, and a seal is achieved between the cone cover 223 and the upper end of the filter screen 213. The distance between the bottom of the lower cone 222 and the top of the upper cone 221 is substantially the same as the width distance of the filter screen 213 along the axis.

[0058] The circumferential maximum diameter of the upper cone 221 is substantially the same as the circumferential maximum diameter of the lower cone 222, wherein the circumferential maximum diameter of the upper cone 221 is formed by the circumferential arrangement of the second air inlet 2213 and the second air passing portion 2215, and the circumferential maximum diameter of the lower cone 222 is formed by the circumferential arrangement of the first air inlet 2223 and the first air passing portion 2225. The upper cone 221 and the lower cone 222 abut against the inner circumference of the filter 213, forming a large space between the first air inlet 2223 and the second air inlet 2213 and the filter 213, so as to facilitate air flow into the first air inlet 2223 and the second air inlet 2213. The direction of the airflow when entering the primary separator 21 is consistent with the direction of the airflow entering the first air inlet 2223 and the second air inlet 2213, so as to avoid turbulence.

[0059] After the lower cone 222 and the upper cone 221 are installed in the first-stage separator 21, the first air inlet 2223 of the lower cone 222 is located at the end of the airflow guide channel 216 along the airflow inlet direction, followed by the second air inlet 2213 of the upper cone 221. The airflow guide channel 216 is arranged in sequence according to the interval order. The airflow guide channel 216 is set at a position close to the upper end of the first-stage separator 21. The airflow guide channel 216 shields the filter screen 213 at the upper end. The second air inlet 2213 of the upper cone 221 is blocked by the airflow guide channel 216. When the airflow enters the first-stage cyclone space 210, it surrounds the first-stage cyclone space 210 counterclockwise. It rotates downward to avoid being directly sucked into the second air inlet portion 2213 closest to the air flow guiding channel 216 after coming out of the air flow guiding channel 216 without any transition, wherein the angle formed by the end of the air flow guiding channel 216 and the entrance point of the first air inlet portion 2223 of the lower cone 222 to the axis X of the cup body 1 is not greater than 30 degrees, the angle formed by the end of the air flow guiding channel 216 and the entrance point of the second air inlet portion 2213 of the upper cone 221 to the axis X of the cup body 1 is not less than 45 degrees, and the angle formed between the entrance end to the end of the air flow guiding channel 216 and the axis X is not greater than 120 degrees.

[0060] Dust is sucked into the cyclone separator 100 from the air inlet 101. After the dust is cyclone filtered in the first-level cyclone space 210, part of the dust falls on the bottom of the cup body 1 during the rotational separation process, and part of the dust passes through the filter 213 and enters the upper cone 221 and the lower cone 222 from the first air inlet 2223 and the second air inlet 2213 respectively for secondary cyclone filtration. The filtered airflow is discharged outward from the air outlet column of the cone cover 223 through the air outlet filter Haipa 3. The dust after rotation filtration by the upper cone 221 and the lower cone 222 falls downward into the secondary ash storage part 212. The lower end of the cup body 1 and the second ash storage part 212 are sealed by the bottom wall 12. When the bottom wall 12 is opened, the cup body 1 and the second ash storage part 212 are open to the outside to achieve ash dumping.

[0061] In the patent of the present invention, dust gas enters the filter screen 213 after being filtered by the primary cyclone, and the air flow is simultaneously sucked in by the first air inlet part 2223 and the second air inlet part 2213 which are staggered in the upper and lower parts to perform secondary cyclone separation. With such a configuration, as many air inlets as possible can be set in the limited circumferential space, thereby increasing the air intake volume of the secondary separator 22, improving the separation efficiency of the cyclone separator 100, and reducing the volume of the separation device 2. In this way, the overall size of the cyclone separator 100 can be reduced, which is in line with the market trend of lightweight and miniaturization. Furthermore, without reducing the size of the cup body 1, the volume of the separation device 2 can be reduced, which can increase the ash storage capacity of the cup body 1, extend the service life of the cyclone separator 100, and eliminate the need for frequent ash emptying.

[0062] In the present invention, the cyclone separator 100 is a device for separating dust and gas in a cleaning appliance, and its application scope is not limited to any form of cleaning appliance. Figures 16 to 19 As shown, the cyclone separator 100 can be used in handheld, gun-type, vertical, horizontal and any other forms of cleaning appliances, which will not be described in detail in this patent.

[0063] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the embodiments. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, other modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here. The above is only a specific embodiment of the present invention, and any other improvements made based on the concept of the present invention are regarded as the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A space-saving high-efficiency cyclone separator, characterized in that: include: A cup body and a separation device arranged in the cup body, the cup body comprising a longitudinal axis, the separation device comprising a primary separator and a secondary separator arranged in the primary separator, the primary separator comprising a filter screen and an airflow guide channel arranged around the filter screen, the secondary separator comprising an upper cone and a lower cone stacked up and down, the lower cone and the upper cone respectively comprising a plurality of first air intake parts and a plurality of second air intake parts for air intake after separation from the filter screen, the airflow guide channel being arranged at the upper end of the filter screen and shielding a portion of the second air intake part; The first air inlet portion of the lower cone and the second air inlet portion of the upper cone are alternately arranged in a circumferential direction and are staggered in an up-and-down manner.

2. The space-saving high-efficiency cyclone separator according to claim 1, characterized in that: The upper cone includes a second air passing portion which is spaced apart from the second air inlet portion in the circumferential direction.

3. The space-saving high-efficiency cyclone separator according to claim 2, characterized in that: The lower cone includes a first wind passing portion which is arranged at intervals from the first air inlet portion in the circumferential direction.

4. The space-saving high-efficiency cyclone separator according to claim 3, characterized in that: The second air inlet portion is arranged above the first air passing portion along the axis of the cup body, and the second air passing portion is arranged above the first air inlet portion along the axis of the cup body.

5. The space-saving high-efficiency cyclone separator according to claim 1, characterized in that: The angle formed by the end of the airflow guiding channel and the entrance point of the first air inlet portion of the lower cone to the cup body axis is no greater than 30 degrees.

6. The space-saving high-efficiency cyclone separator according to claim 1, characterized in that: The angle formed by the end of the airflow guiding channel and the entrance point of the second air inlet of the upper cone to the cup body axis X is not less than 45 degrees.

7. The space-saving high-efficiency cyclone separator according to claim 1, characterized in that: The angle formed between the inlet end and the terminal end of the airflow guiding channel and the axis of the cup body is no greater than 120 degrees.

8. The space-saving high-efficiency cyclone separator according to claim 1, characterized in that: The cup body is provided with an airflow inlet for airflow to flow in, and the inlet end of the flow guiding channel is also provided with a blocking piece capable of blocking the airflow inlet.

9. A cleaning device, characterized in that: The invention comprises a space-saving high-efficiency cyclone separator as claimed in any one of claims 1 to 8.

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